Mechanical deformation and fracture mode of polycrystalline graphene: Atomistic simulations

被引：25

作者：

Hao, Feng ^{[1
]}

Fang, Daining ^{[1
,2
]}

机构：

[1] Tsinghua Univ, Dept Engn Mech, Beijing 100084, Peoples R China

[2] Peking Univ, Coll Engn, Beijing 100087, Peoples R China

来源：

PHYSICS LETTERS A | 2012年 / 376卷 / 24-25期

关键词：

Polycrystalline graphene; Molecular dynamics; Buckling; Fracture mode; GRAIN-BOUNDARIES; ELECTRONIC TRANSPORT; LARGE-AREA; FILMS;

D O I：

10.1016/j.physleta.2012.04.040

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Mechanics of polycrystalline graphene are studied through molecular dynamics simulations. Local buckling forms the ridge or funnel centering on pentagon, and fluctuating stress occurs under small tensile strain due to out-of-plane distortion. In addition, brittle breaking is initialized from heptagons and ends with fracture of pentagons. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：1942 / 1947

页数：6

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